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# Javascript Developer

- **Company:** S Three Management Services Limited
- **Location:** London, United Kingdom
- **Experience:** Expert
- **Salary:** £130,000 - £182,000
- **Contract:** Temporary contract
- **Skills:** JavaScript (Programming Language), Microsoft Excel, Application Programming Interfaces (APIs), Agile Methodology, Amazon Web Services, Application Performance Management, Microsoft Azure, Cloud Computing, Code Review, Databases, Continuous Integration, Distributed Systems, Next.js, Google Cloud, Tailwind, ReactJS, Backend, Containerization, Kubernetes, Information Technology, Front End Software Development, Software Version Control, Docker, Microservices
- **Published:** November 13, 2026
- **Apply:** https://www.totaljobs.com/job/javascript-developer/s-three-management-services-limited-job108315590

## About the Role

* 5-10 years of professional experience in JavaScript development
 * Strong proficiency in React and Next.js
 * Solid understanding of APIs, microservices and distributed systems
 * Experience working with SQL databases
 * Comfortable with modern development workflows, version control and CI/CD practices
 * Bachelor's degree in Computer Science or equivalent professional experience
 * Authorization to work in the United Kingdom

Nice-to-have

 * Experience with Agile methodologies
 * Familiarity with cloud platforms (AWS, Azure, GCP)
 * Knowledge of containerisation tools (Docker, Kubernetes)
 * Proficiency with Tailwind CSS or similar styling frameworks
 * Meta Front-End Developer Certificate, JavaScript Certification (JSE) or freeCodeCamp Front End Libraries (React)
 * Comfort with Excel for data analysis

## Description

* Developing and maintaining responsive, user-centric applications using React and Next.js
 * Collaborating with backend teams to integrate APIs and microservices
 * Writing clean, maintainable JavaScript code following best practices and team standards
 * Contributing to code reviews and helping raise the quality bar across the team
 * Working within Agile sprint cycles to deliver features and improvements
 * Troubleshooting and optimising application performance
 * Engaging with stakeholders to understand requirements and translate them into technical solutions